Incident Analysis: How to Correlate Alerts with Flows and Packets

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In incident analysis it is important to provide evidence of the problem  at various level of details: Alerts Alerts are the result of traffic analysis (in ntopng based on checks) that have detected specific indicators in traffic that triggered the alert. For instance a host whose behavioural score has exceeded a given threshold or a […]

Using ntopng with Checkmk: A Tutorial

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Today we’ll discuss the ntopng integration with Checkmk, a popular open source infrastructure monitoring tool to which ntopng adds traffic visibility. If IT infrastructure monitoring and network usage monitoring would see each other on Tinder, they would both for sure swipe right and match. Bringing the big picture perspective of IT infrastructure monitoring together with […]

Welcome to ntopng 5.2: Historical Data Analysis, Better Performance and Alerting

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Initially designed as a maintenance release, 5.2 brings many improvements in its processing engine with over 3’000 code commits. The main goal is to enhance application scalability by optimising memory and CPU usage, while introducing a new persistency layer based on ClickHouse that has replaced nIndex a home-grown high-performance indexing system that we introduced years […]

Introducing nDPI 4.2: More Protocols and Robustness with -80% Memory

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This is to announce the availability of nDPI 4.2 stable that brings several improvements and a reduced per-flow memory footprint (about -80% with respect to 4.0). We have continued to improve the DPI engine adding richer protocol metadata, as well as adding support for many platforms. The continuous integration toolchain along with fuzzy-testing allowed us […]